Flush-tank.



J. WEIS.

PLUSH TANK. APPLICATION IILBD MAR. 29/1913.

Patented Aug. 12, 1913.

UNITED STATES PATENT OFFICE.

JULIUS WEIS, OF ST. PAUL, MINNESOTA.

FLUSH-TANK.

To all whom it may concern:

Be it known that I, JULIUS WEIS, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented a new and useful Improvement in Flush-Tanks, of which thefollowing is a specification.

This invention relates to'flush tanks, and more particularly to fillingmeans therefor.

Heretofore it has been usual to provide valve mechanism for admittingwater into a tank and to use a float which gradually and automaticallycloses the supply of water as the tank becomes filled to the desiredlevel. This operation of gradually closing the supply valve isdetrimental and defective, because the operation of closing the valvegradually, produces uneven wear of the valve surfaces and allows smallparticles of sand and foreign substances to catch between the valve andits seat thus producing a cutting effect which soon causes the valve toleak. This leaking of the supply valve in flush tanks is a common sourceof trouble and annoyance, and it is the primary object of my inventionto overcome this defect.

Among further objects of my invention is the production of a supplyvalve and valve operating parts, which are simple in construction,comparatively inexpensive to install, thoroughly effective, reliable andnoiseless in operation, and possess a capacity for long and repeatedservice.

The above and additional objects are attained by means substantiallysuch as illustrated in the accompanying drawing forming part of thisspecification, in which- Figure l is a part sectional view of flushingapparatus embodying my improvements, the position of the operativeelements being shown when the level of water has reached maximumcondition and the supply valve is closed; Fig. 2 is a similar viewrepresenting the position of the parts when the level of water in thetank is below maximum,

and the tank is either being filled or discharged; Fig. 3 is a detailshowing the supply valve check which is illustrated mounted upon aportion of the flush tank, and Fig. 4 is a section taken upon the lineXYX of Fig. 3, illustrating the buffer of the check pin and the mannerof cushioning its surface against which the supply valve float impinges.

In the drawing A indicates a flush tank of usual shape, which isprovided with the cus- Specification of Letters Patent.

Application filed March 29, 1913.

Patented Aug. 12, 1913.

Serial No. 757,579.

tomary main water supply valve 2, leading from the supply pipe 3. Thisvalve is mounted in the upper edge of one of the side walls of the tankand is provided with the usual float 13 carried by the valve actuatingarm 1, which is pivoted on the valve casing at 5, said float beingadapted to close the valve 2 in a manner to be hereinafter described andcheck the supply of water to the tank when the water reaches apredetermined maximum level therein. To close the valve 2 by its floatinstantly when the water reaches maximum level in the tank, instead ofgradually as the water approaches said level as heretofore, I provide acheck 0 which holds the valve fully open until the desired level ofwater in the tank is reached, whereupon said check automaticallyreleases said valve and permits the float B to close it instantly. Saidcheck C consists of a pin 35 arranged toslide up and down freely throughtwo guide lugs 6 and 7 on theside of a frame 8, said frame being mountedupon a horizontal rod 9, passing through its upper end. The upper end isformed integral with the frame and is secured to the rod 9 inhorizontally selected position by means of the set bolt 10. The pin 35is formed with a head 11 on its upper end against which the lowersurface 12 of the lug 13. on the side of the lower end of the-trigger-14 is adapted to engage and hold the pin in its lowermost position untilthe trigger 14: is moved with its lug 13 out of the path of the head 11,whereupon the pin 35 is free to move upwardly and allow the float B torise in the water in the tank and close the valve 2 instantly. The lowerportion of the pin 35 is provided with a large buffer 15 in the form ofa horizontal plate having upwardly projecting lips 16 from its edge. Thelower face of the buffer is covered by a square blank 31 of leather orother suitable comparatively soft material, the corners of which areturned up over the side of the bufl'er and secured through theinterstices between the lips by means of a cord 17. The covered face ofthe bufler acts as a cushion against which the surface of the float B isadapted to impinge and reduces the tendency ofthe bufler from wear ingthe surface of the float.

formed with an enlarged end 19, which is selectively mounted upon avertical rod 20, passing through said end, by means of the set screw 21.The vertical rod 20 is formed with a body 2 on. its upper end, which isadapted to be fastened over the upper edge of the side wall of the tankby means of screws 241:. In this manner the position of the pin may bearranged directly over the surface of the float B, and the height atwhich the pin is released to check the supply of water into the tank canbe pre-arranged. This is an advantage because the apparatus is therebyadapted to tanks of different dimensions. For tripping the trigger 1-1with its lug 13 out of engagement with the head of the stem, anauxiliary float D is provided which connected to a trip 25 by means ofthe rod 26. This trip is in the form of a bell crank lever pivoted atits angle by the pin 27 on the side of the frame 8, one arm of saidlever being secured to the rod 26, and the other arm 28 positioned so asto strik against the side of and disengage said trigger from the pinwhen the water in the tank reaches a predetermined or maximum level. Thebuoyant force of the water exerted upon the float D produces thisresult. When the float D tilts the trigger causing its arm 28 to moveagainst the side of the trigger and release the pin 35 and the float B,the buoyant force of the water lifts the float B in the tank and thevalve 2 is instantly closed, thus checking the supply of water, theposition the partsass'ume being indicated in Fi g. 1. The float B, bythe use of the mechanism described is made to actuate the check C, whilefully submerged, thereby imparting a maximum operating power by a floatof minimum size. A stop 30 depending from and integral with the upperend of the frame 8 limits the lowering movement of the float I), the end28 of the bell crank lever striking against said stop.

ll ater from the tank is discharged through suitable dischargingmechanism that may be provided, the floats l3 and D reced ingautomatically as the level of the water in the tank lowers. The pin 85during this operation follows with its butter riding upon the surface ofthe float B until the head end of the pin rests upon the upper lug 6 ofthe frame 8. In this position the valve 2 is fully opened and the tankrefilled, As the head of the pin 35 passes the lug 13 on the side of thetrigger 14, its upper surface 29, which is slanted as illustrated,guides over the head 11 until said head lowers below said lug whereuponthe trigger swings down with its lug acting as a stop over the head ofthe pin to prevent the pin from sliding up and the float l3 rising untilthe maximum level of water in the tank is attained.

Any suitable flushing or discharging mechanism may be provided such asis in comadapted to be primed to flush the tank by means of the watersupply tube F, discharg ing into the neck of the siphon and theautomatic self closing cock G. V

In accordance with the patent statutes I have described the principlesof operation of my invention together with the apparatus which I nowconsider to represent the best embodiment thereof but I desire to haveit understood that the construction shown is only illustrative and thatthe invent-ion can be carried out by other means and applied to usesother than those above set forth within the scope of the followingclaims.

Having described my invention, what I claim as new and desire to protectby Letters Patent is:-

1. In flushing apparatus, a tank, a supply valve, a float adapted toclose said valve by its rise and open said valve by its fall, and meansfor holding said valve substantially fully open until a maximum level ofwater is attained in said tank and automatically closing said valveinstantly upon said maximum level of water in said tank being attained,said means being selectively positioned in height upon a wall of saidtank to adjust its height to the position atwhich the supply of liquidto said tank is adapted to be checked.

2. In flushing apparatus, a tank, a supply valve, a float adapted toclose said valve by its rise and open said valve by its fall, checkadapted to hold said valve substantially fully open until the maximumlevel of water in said tank is attained, a trigger controlled by thelevel of water in said tank and adapted to release said check and permitsaid valve to close instantly when the maximum level of water in saidtank is attained, a bracket. having a depending arm secured to a sidewall of said tank above the maximum level of liquid therein and a frameon which said check and trigger are mounted, said frame beingselectively positioned upon said arm to vary the height at which saidparts are supported in said tank.

3. In flushing apparatus, a tank, a supply valve, a float adapted toclose said valve by its rise and open said valve by its fall, a checkabove the level of liquid adapted to play up and down with the movementof and impinge down upon said float, a trigger adapted to block theupward movement of said. check and hold said float down, a trip adaptedto travel across the path of movement of said check for releasing sa'idtrigger and a float. adapted to operate said trip and release saidtrigger when the maximum level of liquid in said tank is attained.

it, In flushing apparatus, a tank, a supply valve, a float adapted toclose said valve by its rise and open said valve by its fall, asupporting element secured to a Wall of said tank, a frame selectivelypositioned in height on said supporting element, a check pin slidable insaid frame and adapted to play up and down in the path of and With themove ment of said float, a trigger pivoted on said frame and adapted tocheck said pin and hold said float down, a trip on said framecooperating With said trigger and a float adapted to operate said tripand release said trigger from said pin instantly upon the maximum levelof Water in said tank being attained.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing Witnesses.

JULIUS WVEIS.

W'itnesses:

A. L. FISCHER, F. S. BRADBURY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

